Fix "Message object do not support addition".

[Zhenyu Zheng]

In the 7.0.0 Novaclient release we added some warning log about using "endpoint_type"
rather than "interface" when init novaclient:
https://github.com/openstack/python-novaclient/blob/master/novaclient/client.py#L312-L327
https://github.com/openstack/python-novaclient/blob/master/novaclient/client.py#L249-L272

This is now causing alot jenkins failures acroos projects that is using novaclient with
enable_lazy set to False. As in this kind of scenario the warning message is a message
object instead of unicode sting and it cannot be added:
http://git.openstack.org/cgit/openstack/oslo.i18n/tree/oslo_i18n/_message.py#n227
and "Message object do not support addition" will raise.

Related Jenkins Error:
Ceilometer:
http://logs.openstack.org/29/333129/3/check/gate-ceilometer-python27-ubuntu-xenial/bd125e7/

---------------------------------------
For ceilometer, it also has "AttributeError: 'module' object has no attribute 'HTTPClient'"[1] error because novaclient 7.0.0 release.

[1] http://logs.openstack.org/72/414072/5/check/gate-ceilometer-python27-ubuntu-xenial/8806ac6/testr_results.html.gz

[huangtianhua (huangtianhua)]

https://review.openstack.org/#/c/414511/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/414072
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=c0e42f00af9ed8d8b3e81de2e67a6e5e7bbcecdf
Submitter: Jenkins
Branch: master

commit c0e42f00af9ed8d8b3e81de2e67a6e5e7bbcecdf
Author: Julien Danjou <email address hidden>
Date: Thu Dec 22 13:06:48 2016 +0100

    Fix the gate failure because of several issues

    1. Fix expecting content-type headers in gabbit tests, the headers don't
    contain the charset anymore, just remove it.

    2. Use 'endpoint_type' instead of 'interface' while init novaclient,
    because novaclient has deprecated the name 'interface', see[1].

    3. Don't use novaclient.HTTPClient, since the 'HTTPCLient' has been
    deprecated in novaclient, see[2].

    [1] https://review.openstack.org/#/c/406299/
    [2] https://review.openstack.org/#/c/408728/

    Closes-Bug: #1652414
    Change-Id: I33f2dd9303b93391ff40d77cf93e6e285c983287
    Co-Authored-By: Hanxi Liu <email address hidden>
    Co-Authored-By: liusheng <email address hidden>

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/415165
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=dea42810ef9f29c5ede0076bfd4d2788235bcbd3
Submitter: Jenkins
Branch: stable/mitaka

commit dea42810ef9f29c5ede0076bfd4d2788235bcbd3
Author: Hanxi Liu <email address hidden>
Date: Tue Dec 27 17:09:11 2016 +0800

    Fix the gate failure because of several issues

    1. Fix expecting content-type headers in gabbit tests, the headers don't
    contain the charset anymore, just remove it.

    2. Use 'endpoint_type' instead of 'interface' while init novaclient,
    because novaclient has deprecated the name 'interface', see[1].

    3. Don't use novaclient.HTTPClient, since the 'HTTPCLient' has been
    deprecated in novaclient, see[2].

    [1] https://review.openstack.org/#/c/406299/
    [2] https://review.openstack.org/#/c/408728/

    Closes-Bug: #1652414
    Change-Id: I07790b2a270fd4dc4ca95e95b01fbd41b4c43cf3
    (cherry picked from commit 23acafbd9ddaff65b927fc2cbad33b9ed3f118b0)
    Co-Authored-By: Julien Danjou <email address hidden>
    Co-Authored-By: liusheng <email address hidden>

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/414529
Committed: https://git.openstack.org/cgit/openstack/python-novaclient/commit/?id=aeec4d11b2dae769bfe020dcd95ec607afaeed55
Submitter: Jenkins
Branch: master

commit aeec4d11b2dae769bfe020dcd95ec607afaeed55
Author: Kevin_Zheng <email address hidden>
Date: Fri Dec 23 17:38:57 2016 +0800

    Fix "Message object do not support addition".

    In the 7.0.0 Novaclient release we added some warning
    log about user should using "endpoint_type" rather than
    "interface" when init novaclient:
    https://github.com/openstack/python-novaclient/blob/master/novaclient/client.py#L312-L327

    https://github.com/openstack/python-novaclient/blob/master/novaclient/client.py#L249-L272

    This is now causing a lot jenkins failures acroos projects
    that is using novaclient with enable_lazy set to False.
    As in this kind of scenario the warning message is a message
    object instead of unicode sting and it cannot be added:
    http://git.openstack.org/cgit/openstack/oslo.i18n/tree/oslo_i18n/_message.py#n227

    and "Message object do not support addition" will raise.

    Related Jenkins Error:
    Ceilometer:
    http://logs.openstack.org/29/333129/3/check/gate-ceilometer-python27-ubuntu-xenial/bd125e7/

    Closes-bug: #1652414
    Change-Id: I11a490f759fdac9707c1321c9659da2605196a94

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-novaclient 7.1.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/ceilometer 6.1.4 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/ceilometer 8.0.0 release.